High Power Ultra-Linear TDD Switch
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United States of America Patent
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Issued Date -
Nov 26, 2009
app pub date -
May 21, 2008
filing date -
May 21, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to wide-band high output power ultra-linear TDD switch systems for receiving and/or transmitting signals that can meet wireless communication and base systems requirements. They comprise of an antenna; one or more circulators; and one or more signal ports where at least one of the circulators enables a selectable path for a signal between the antenna and one of said signal ports. This selectable path may be uni-directional. For antenna switches that receive and transmit signals, these switches may have two signal ports, one for transmitting signals and another for receiving signals where at least one of the circulators enables a selectable uni-directional path for a signal between the antenna and a signal port; and at least one of the circulators enables a selectable uni-directional second path for a signal between the antenna and a second signal port. These antenna switches are ultra-linear, have simple base station mechanical structure that can be connected simply with transceivers, capable of handling high power transmissions in TDD wireless communication base station systems, and can have increased receiver sensitivity and increased isolation between the transmitted and received signals.
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